NCHRP Synthesis 396 â Monitoring Scour Critical Bridges - TSP2

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TABLE 4 BRIDGE SPECIFIC DATA Sample Set of 56 Surveyed Bridges with Fixed Scour Monitors State Alabam a Alas k a Bridge Nam e Bridge Identification Num ber (BIN) Type(s) of Fixed Scour Monitors ADT Year Bui l t Yea r Rebui l t NBI S Item 113 Foundation Type Known Foundation Depth US-82 0 1 Float-O u t 9,000 1962 N /A 345 1,133 N /A Pile s A s- b uilt depths Tanana River Bridge No . 202 202 Kashwitna River Bridge N o. 212 212 Montana Creek Bridge N o. 215 215 Sheridan Glacier No. 3 Bridge No. 230 230 Copper Delta Bridge No. 339 Copper Delta Bridge No. 340 340 Copper Delta Bridge No. 342 342 Salcha River Bridge No . 527 527 Knik River Bridge No . 539 539 Slana Slough Bridge No . 654 654 Slana Slough Bridge No . 655 655 Mabel Slough Bridge No . 656 656 Tok River Bridge No. 663 663 Kasilof River Bridge No . 670 670 Kenai River at Soldotn a N o. 671 671 Eagle River Bridge No . 734 734 Red Cloud River Bridge N o. 983 983 Glacier Creek Bridge No. 999 999 N enana River at Wi nd y Bridge No. 1243 1243 Lowe River Bridge No . 1383 1383 Bridge Length (m ) (ft) 1 Sona r 0 1965 0 398 1,305 0 1 Sona r 2,359 1962 0 65 213 7 2 Sonars 0 1962 0 43 140 0 1 Sona r 0 1968 0 61 201 0 1 Sona r 0 1977 N /A 122 401 7 1 Sona r 0 1977 N /A 73 241 8 Sonars 0 1977 1988 269 881 7 1 Sona r 0 1967 154 504 0 1 Sona r 3,407 1975 N /A 154 506 7 1 Sona r 400 1979 0 47 153 0 1 Sona r 400 1979 2006 12 41 0 1 Sona r 400 1979 0 12 41 0 2 Sonars 0 1969 0 73 241 0 2 Sonars 4,610 1965 0 87 284 0 1 Sona r 0 0 0 120 394 0 1 Sonar, Ultrasonic Piezoelectric Film 351 1959 0 64 211 7 1 Sona r 100 0 19 63 0 1 Sona r 3,711 0 68 222 7 1 Sona r 1,912 1973 0 119 389 0 1 Sona r 461 1978 0 92 303 0 Piles & Spr Ftg Pile s Pile s Pile s Pile s Spread footing Spread footing As - b uilt depths As - b uilt depths As - b uilt depths As - b uilt depths As - b uilt depths As - b uilt depths As - b uilt depths (continued on next page)
TABLE 4 (continued) State Arkansas California Florida Georgia Bridge Name Red River at Fulton 3981 Bridge Identification Number (BIN) Type(s) of Fixed Scour Monitors ADT Year Built 1 Sonar; 1 Ultrasonic Distance; Camera Year Rebuilt Bridge Length (m ) (ft) NBIS Item 113 20,900 1959 394 1,294 3 Foundation Type Spread footing Known Foundation Depth As-built depths Toomes Creek 08-0005 5 Tilt Sensors 8,190 1917 1952 117 385 St. Helena Creek 14-0016 1 Magnetic Sliding Collar, 1 Tilt Sensor 7,030 1934 57 187 Merced River 39-0071 2 Sonars 2,230 1953 144 473 SR-101 Bridge over the Salinas River 44-0002 L/R Magnetic Sliding Collars, Float-Outs 12,350 1939 1960 (L) All 1999 384 1,260 Cholame Creek 49-0095 6 Float-Outs, 1 Tilt Sensor 5,370 1959 56 184 Tick Canyon Wash 53-1547 16 Float-Outs 89,000 1963 35 114 San Mateo Creek—L/R 57-0001 L/R 8 Tilt Sensors 22,500 1968 154 506 1 MSC; 6 Circuit Spread footing San Gorgonio River 56 0003 Cables at Levee 86,000 1940 73 239 8 As-built depths 1 Sonar, 16 Tilt Sensors, 32 Float- Santa Clara River Outs 1930 1965 558 1,830 3 Piles As-built depths SR-105 & SR A1A 720062 8 Sonars 1949 N /A 37 120 5 Piles As-built depths John's Pass Bridge 150076 2 Sonars 1971 N /A 253 830 3 Piles As-built depths Otis Redding Bridge N /A 6 Sonars Spread footing Design depths Hawaii Indiana Kansas Georgia Highway 384 over Chattahoochee River N /A 4 Sonars Piles Design depths US Highway 27 over Flint Spread footing River N /A 6 Sonars Design depths US Highway 17 over Darien River N /A 3 Sonars Piles Design depths 2 Magnetic Sliding Spread footing Kaelepulu Bridge, Oahu 3.00083E+12 Collars 1960 61 200 Unknown Kahaluu Bridge, Oahu 1 Sonar 97 318 Spread footing Unknown US-52 over Wabash River and SR-43 21480 1 Sonar, 1 Magnetic Sliding Collar 16,498 1969 1984 305 1,002 8 Piles Design depths Amelia Earhart Bridge (US-59) B0003-0013 2 Sonars 8,960 1938 N /A 762 2,500 5 Piles Design depths (continued on next page)
Page 1 and 2: NCHRP NATIONAL COOPERATIVE HIGHWAY
Page 3 and 4: NATIONAL COOPERATIVE HIGHWAY RESEAR
Page 5 and 6: The National Academy of Sciences is
Page 7 and 8: FOREWORD Highway administrators, en
Page 9 and 10: 53 CHAPTER EIGHT CONCLUSIONS Synthe
Page 11 and 12: 2 FIGURE 1 Causes of bridge failure
Page 13 and 14: 4 (TRIS), the U.S. Geological Surve
Page 15 and 16: 6 TABLE 1 TYPES OF FIXED SCOUR MONI
Page 17 and 18: 8 FIGURE 6 Detail of conduit to und
Page 19 and 20: 10 Sounding Rods, also known as BRI
Page 21 and 22: 12 80 70 Note: Number of bridge sit
Page 23 and 24: 14 FIGURE 17 States with fixed scou
Page 25 and 26: 16 TABLE 2 (continued) State Georgi
Page 27: 18 TABLE 3 (continued) State N ew M
Page 31 and 32: 22 TABLE 5 BRIDGE SITES WITH FIXED
Page 33 and 34: 24 40 35 Number of Installations 30
Page 35 and 36: 26 FIGURE 24 Underwater sonar brack
Page 37 and 38: 28 can turn into rapidly flowing ri
Page 39 and 40: 30 TABLE 6 ESTIMATED COST INFORMATI
Page 41 and 42: 32 depths with existing scour formu
Page 43 and 44: 34 The states also found the need t
Page 45 and 46: 36 Appendix G contains sample progr
Page 47 and 48: 38 such as Microsoft Excel. Sample
Page 49 and 50: 40 FIGURE 32 Active streambed monit
Page 51 and 52: 42 including sending false alarms a
Page 53 and 54: 44 FIGURE 43 Remote station, solar
Page 55 and 56: 46 FIGURE 46 General elevation of K
Page 57 and 58: 48 Alaska The Knik River near Palme
Page 59 and 60: 50 Georgia The Georgia DOT report c
Page 61 and 62: 52 using thermocouples spaced along
Page 63 and 64: 54 TABLE 7 FIXED INSTRUMENTATION SU
Page 65 and 66: 56 future repair costs, especially
Page 67 and 68: 58 A clear chain of command of thos
Page 69 and 70: 60 FHWA LTBP The FHWA initiated a m
Page 71 and 72: 62 REFERENCES Avila, C.M.C., J.A. R
Page 73 and 74: 64 BIBLIOGRAPHY Blodgett, J.C., Mon
Page 75 and 76: 66 APPENDIX A Survey Appendix A con
Page 77 and 78: 68 Section 1 1.1 Agency/Organizatio
Page 79 and 80:
70 Section 5 Design and Installatio
Page 81 and 82:
72 6.18 Have analyses and/or tests
Page 83 and 84:
APPENDIX B Survey Respondents State
Page 85 and 86:
76 APPENDIX C Summary of Survey Res
Page 87 and 88:
78 2.4 What innovations/advancement
Page 89 and 90:
80 NJ (1)—30,000 NJ (2)—70,000
Page 91 and 92:
82 FL—120 ft (District 2) HI (1)
Page 93 and 94:
84 3.17 What is the foundation type
Page 95 and 96:
86 HI (1)—2/1/04; Q = 930 cfs; 2-
Page 97 and 98:
88 AK (2.12)—$10,000 materials, $
Page 99 and 100:
90 5.9 Do the monitors have an auto
Page 101 and 102:
92 6.3 How often is the data collec
Page 103 and 104:
94 6.10 How is the data used, and w
Page 105 and 106:
96 AR—Sonar can be checked agains
Page 107 and 108:
98 7.7 Who repairs the scour monito
Page 109 and 110:
100 8.5 Were there any additional p
Page 111 and 112:
102 APPENDIX D Bridges with Fixed S
Page 113 and 114:
TABLE D3 MONITORED SCOUR CRITICAL B
Page 117 and 118:
10.00 0.00 -10.00 -20.00 -30.00 -40
Page 120 and 121:
4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0
Page 122 and 123:
-5 -10 -15 -20 -25 -30 -35 Scour De
Page 124 and 125:
-16 -17 -18 -19 -20 -21 -22 -23 -24
Page 126 and 127:
Sonar Scour Monitor Data for Wantag
Page 128 and 129:
119 APPENDIX F Case Studies Abbrevi
Page 130 and 131:
121 30 N. Abutment Pier Number S. A
Page 132 and 133:
123 APPENDIX G Available Plans, Pro
Page 134 and 135:
125 4. ALERT DEPTH If the “Alert
Page 136 and 137:
127 TABLE OF CONTENTS 1. Descriptio
Page 138 and 139:
129 3. Recording of a “no lock”
Page 140 and 141:
The Regional Structures Engineer sh
Page 142 and 143:
While continuing to encourage DOTs
Page 144 and 145:
A Scour Monitoring General Inspecti
Page 146 and 147:
137 16. CONTACTS Each bridge locati
Page 148 and 149:
139 Nevada Department of Transporta
Page 150 and 151:
141 Location: Bridge B-420, US 95 a
Page 152 and 153:
143 Location: Bridge B-839S, I-15 a
Page 154 and 155:
145 Responses to Sonar Calls: First
Page 156 and 157:
147 4. RECOMMENDED ACTION(S) (see S
Page 158:
149 Emergency repair plans (include
Page 162 and 163:
153 Functional Applications Local S
Page 164 and 165:
Bridge owners to facilitate their e
Page 166 and 167:
157 DRAFT RESEARCH PROBLEM STATEMEN
Page 168:
Abbreviations used without definiti
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NCHRP Synthesis 396 â Monitoring Scour Critical Bridges - TSP2